/* =====================================================
   CREATIVE LEARNING BY DESIGN — Shared Stylesheet
   All pages link to this file. Page-specific styles
   live in each page's own <style> block.
===================================================== */

/* ── Variables ─────────────────────────────────── */
:root {
  --purple:   #7c3aed;
  --purple-l: #a78bfa;
  --blue:     #2563eb;
  --blue-l:   #60a5fa;
  --cyan:     #06b6d4;
  --green:    #10b981;
  --amber:    #f59e0b;
  --rose:     #f43f5e;
  --indigo:   #6366f1;
  --teal:     #14b8a6;
  --orange:   #f97316;
  --bg:       #060914;
  --surface:  #0d1117;
  --card:     #111827;
  --border:   rgba(255,255,255,.07);
  --text:     #f1f5f9;
  --muted:    #94a3b8;
  --radius:   20px;
}

/* ── Reset ─────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ── Navigation ────────────────────────────────── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: 16px 40px;
  display: flex; align-items: center; justify-content: space-between;
  background: rgba(6,9,20,.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: background .3s;
}
.nav-logo { display: flex; align-items: center; text-decoration: none; color: var(--text); }
.nav-links { display: flex; align-items: center; gap: 32px; list-style: none; }
.nav-links a {
  text-decoration: none; color: var(--muted); font-size: .875rem; font-weight: 500;
  transition: color .2s;
}
.nav-links a:hover, .nav-links a.active { color: var(--text); }
.nav-cta { display: flex; align-items: center; gap: 12px; }
.btn-nav {
  padding: 9px 22px; border-radius: 10px; font-size: .875rem; font-weight: 700;
  text-decoration: none; cursor: pointer; border: none; transition: all .2s;
  display: inline-flex; align-items: center; gap: 6px;
}
.btn-ghost { background: transparent; color: var(--muted); border: 1px solid var(--border); }
.btn-ghost:hover { border-color: var(--purple-l); color: var(--text); }
.btn-primary-nav {
  background: linear-gradient(135deg, var(--purple), var(--blue));
  color: #fff; box-shadow: 0 0 20px rgba(124,58,237,.3);
}
.btn-primary-nav:hover { box-shadow: 0 0 32px rgba(124,58,237,.5); transform: translateY(-1px); }

/* ── Sections / Layout ─────────────────────────── */
section { padding: 100px 40px; }
.container { max-width: 1200px; margin: 0 auto; }
.text-center { text-align: center; }
.text-center .section-sub { margin-left: auto; margin-right: auto; }

.section-label {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: .72rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase;
  color: var(--purple-l); margin-bottom: 14px;
}
.section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800; letter-spacing: -.03em; line-height: 1.15; margin-bottom: 16px;
}
.section-sub {
  color: var(--muted); font-size: 1.05rem; max-width: 560px; line-height: 1.7; margin-bottom: 60px;
}

/* ── Gradient text ─────────────────────────────── */
.gradient-text {
  background: linear-gradient(135deg, var(--purple-l) 0%, var(--blue-l) 50%, var(--cyan) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}

/* ── Hero ──────────────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden;
  padding: 140px 40px 80px; text-align: center;
}
.orb { position: absolute; border-radius: 50%; filter: blur(80px); opacity: .35; pointer-events: none; }
.orb-1 { width: 600px; height: 600px; background: radial-gradient(circle, var(--purple) 0%, transparent 70%); top: -100px; left: -100px; animation: float1 8s ease-in-out infinite; }
.orb-2 { width: 500px; height: 500px; background: radial-gradient(circle, var(--blue) 0%, transparent 70%); bottom: -50px; right: -50px; animation: float2 10s ease-in-out infinite; }
.orb-3 { width: 300px; height: 300px; background: radial-gradient(circle, var(--cyan) 0%, transparent 70%); top: 40%; left: 50%; transform: translate(-50%,-50%); animation: float3 7s ease-in-out infinite; }
@keyframes float1 { 0%,100%{transform:translate(0,0)} 50%{transform:translate(40px,30px)} }
@keyframes float2 { 0%,100%{transform:translate(0,0)} 50%{transform:translate(-30px,-40px)} }
@keyframes float3 { 0%,100%{transform:translate(-50%,-50%) scale(1)} 50%{transform:translate(-50%,-50%) scale(1.2)} }
.hero::before {
  content: ''; position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size: 60px 60px; pointer-events: none;
}
.hero-inner { position: relative; z-index: 1; max-width: 820px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px; padding: 6px 16px; border-radius: 999px;
  background: rgba(124,58,237,.15); border: 1px solid rgba(124,58,237,.3);
  font-size: .78rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  color: var(--purple-l); margin-bottom: 28px;
}
.hero h1 { font-size: clamp(2.5rem, 6vw, 4.5rem); font-weight: 900; line-height: 1.08; letter-spacing: -.04em; margin-bottom: 24px; }
.hero p { font-size: clamp(1rem, 2vw, 1.25rem); color: var(--muted); max-width: 580px; margin: 0 auto 40px; font-weight: 400; line-height: 1.7; }
.hero-actions { display: flex; align-items: center; justify-content: center; gap: 14px; flex-wrap: wrap; }
.btn-hero { display: inline-flex; align-items: center; gap: 10px; padding: 15px 32px; border-radius: 14px; font-size: 1rem; font-weight: 700; text-decoration: none; cursor: pointer; border: none; transition: all .25s; }
.btn-hero-primary { background: linear-gradient(135deg, var(--purple), var(--blue)); color: #fff; box-shadow: 0 8px 40px rgba(124,58,237,.4); }
.btn-hero-primary:hover { transform: translateY(-3px); box-shadow: 0 16px 48px rgba(124,58,237,.5); }
.btn-hero-secondary { background: rgba(255,255,255,.05); color: var(--text); border: 1px solid var(--border); }
.btn-hero-secondary:hover { background: rgba(255,255,255,.1); transform: translateY(-2px); }
.hero-stats { display: flex; align-items: center; justify-content: center; gap: 40px; margin-top: 64px; flex-wrap: wrap; }
.stat { text-align: center; }
.stat-num { font-size: 2rem; font-weight: 900; letter-spacing: -.04em; background: linear-gradient(135deg, #fff, var(--muted)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.stat-label { font-size: .75rem; color: var(--muted); font-weight: 500; text-transform: uppercase; letter-spacing: .08em; margin-top: 2px; }
.stat-divider { width: 1px; height: 40px; background: var(--border); }

/* ── Feature Items ─────────────────────────────── */
.feature-list { display: flex; flex-direction: column; gap: 16px; }
.feature-item {
  display: flex; align-items: flex-start; gap: 14px; padding: 16px; border-radius: 12px;
  background: rgba(255,255,255,.03); border: 1px solid var(--border); transition: background .2s, border-color .2s;
}
.feature-item:hover { background: rgba(255,255,255,.05); border-color: var(--icon-color, rgba(124,58,237,.3)); }
.feature-item-icon { width: 36px; height: 36px; border-radius: 10px; flex-shrink: 0; display: flex; align-items: center; justify-content: center; font-size: .9rem; background: var(--icon-bg, rgba(124,58,237,.15)); color: var(--icon-color, var(--purple-l)); }
.feature-item-text h4 { font-size: .875rem; font-weight: 700; margin-bottom: 3px; }
.feature-item-text p { font-size: .8rem; color: var(--muted); line-height: 1.5; }

/* ── Two-column content layout ─────────────────── */
.content-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.content-grid.reverse { direction: rtl; }
.content-grid.reverse > * { direction: ltr; }
.content-visual {
  border-radius: 20px; overflow: hidden; position: relative;
  background: var(--card); border: 1px solid var(--border);
  padding: 32px; min-height: 300px; display: flex; flex-direction: column; gap: 12px;
}
.content-visual::before { content: ''; position: absolute; inset: 0; background: var(--vis-gradient, linear-gradient(135deg, rgba(124,58,237,.1), transparent)); pointer-events: none; }
.content-text .section-label { margin-bottom: 12px; }
.content-text .section-title { font-size: clamp(1.5rem, 3vw, 2.2rem); margin-bottom: 14px; }
.content-text .section-sub { margin-bottom: 32px; font-size: .95rem; }

/* ── Mock UI elements ──────────────────────────── */
.mock-header { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.mock-dot { width: 10px; height: 10px; border-radius: 50%; }
.mock-title { font-size: .75rem; font-weight: 700; color: var(--muted); }
.mock-card { background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.07); border-radius: 12px; padding: 14px 16px; font-size: .78rem; color: var(--muted); }
.mock-card-header { font-size: .82rem; font-weight: 700; color: var(--text); margin-bottom: 6px; }
.mock-row { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.mock-badge { font-size: .65rem; font-weight: 700; padding: 3px 10px; border-radius: 999px; }
.mock-progress-bar { height: 5px; border-radius: 999px; background: rgba(255,255,255,.1); overflow: hidden; margin-top: 8px; }
.mock-progress-fill { height: 100%; border-radius: 999px; background: var(--icon-color, var(--purple-l)); transition: width 1.5s ease; }
.mock-tag { display: inline-block; font-size: .65rem; font-weight: 700; padding: 3px 8px; border-radius: 999px; margin-right: 4px; margin-top: 6px; }
.mock-avatar { width: 32px; height: 32px; border-radius: 50%; background: var(--icon-bg, rgba(124,58,237,.2)); color: var(--icon-color, var(--purple-l)); display: flex; align-items: center; justify-content: center; font-size: .75rem; font-weight: 700; flex-shrink: 0; }

/* ── Benefit cards ─────────────────────────────── */
.benefits-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; margin-top: 48px; }
.benefit-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; opacity: 0; transform: translateY(20px); transition: opacity .5s ease, transform .5s ease; }
.benefit-card.visible { opacity: 1; transform: translateY(0); }
.benefit-icon { width: 48px; height: 48px; border-radius: 14px; margin-bottom: 18px; display: flex; align-items: center; justify-content: center; font-size: 1.2rem; background: var(--icon-bg, rgba(124,58,237,.15)); color: var(--icon-color, var(--purple-l)); }
.benefit-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 8px; }
.benefit-card p { font-size: .875rem; color: var(--muted); line-height: 1.65; }

/* ── Testimonials ──────────────────────────────── */
.quotes-section { background: linear-gradient(135deg, rgba(124,58,237,.08) 0%, rgba(37,99,235,.08) 100%); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.quotes-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px; }
.quote-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; opacity: 0; transform: translateY(20px); transition: opacity .5s ease, transform .5s ease; }
.quote-card.visible { opacity: 1; transform: translateY(0); }
.quote-stars { color: var(--amber); font-size: .85rem; margin-bottom: 14px; letter-spacing: 2px; }
.quote-text { font-size: .9rem; color: var(--text); line-height: 1.7; font-style: italic; margin-bottom: 18px; }
.quote-text::before { content: '\201C'; font-size: 1.5rem; color: var(--purple-l); margin-right: 2px; }
.quote-text::after  { content: '\201D'; font-size: 1.5rem; color: var(--purple-l); margin-left: 2px; }
.quote-author { display: flex; align-items: center; gap: 12px; }
.quote-avatar { width: 40px; height: 40px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: .85rem; font-weight: 700; flex-shrink: 0; }
.quote-name { font-size: .82rem; font-weight: 700; }
.quote-role { font-size: .72rem; color: var(--muted); margin-top: 1px; }

/* ── CTA section ───────────────────────────────── */
.cta-section { text-align: center; position: relative; overflow: hidden; }
.cta-section::before { content: ''; position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%); width: 600px; height: 600px; border-radius: 50%; background: radial-gradient(circle, rgba(124,58,237,.15) 0%, transparent 70%); pointer-events: none; }
.cta-section .section-title { font-size: clamp(2rem, 4vw, 3rem); margin-bottom: 20px; }
.cta-section .section-sub { margin: 0 auto 40px; }
.cta-actions { display: flex; align-items: center; justify-content: center; gap: 14px; flex-wrap: wrap; }

/* ── Footer ────────────────────────────────────── */
footer { background: var(--surface); border-top: 1px solid var(--border); padding: 60px 40px 40px; }
.footer-inner { max-width: 1200px; margin: 0 auto; }
.footer-top { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }
.footer-brand p { font-size: .875rem; color: var(--muted); margin-top: 14px; line-height: 1.7; max-width: 280px; }
.footer-col h4 { font-size: .8rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); margin-bottom: 16px; }
.footer-col a { display: block; font-size: .875rem; color: var(--muted); text-decoration: none; margin-bottom: 10px; transition: color .2s; }
.footer-col a:hover { color: var(--text); }
.footer-bottom { border-top: 1px solid var(--border); padding-top: 28px; display: flex; align-items: center; justify-content: space-between; font-size: .8rem; color: var(--muted); flex-wrap: wrap; gap: 8px; }

/* ── Fade-up utility ───────────────────────────── */
.fade-up { opacity: 0; transform: translateY(28px); transition: opacity .6s ease, transform .6s ease; }
.fade-up.visible { opacity: 1; transform: translateY(0); }

/* ── Pricing cards ─────────────────────────────── */
.pricing-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; margin-top: 48px; }
.pricing-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 36px; position: relative; overflow: hidden; opacity: 0; transform: translateY(20px); transition: opacity .5s ease, transform .5s ease; }
.pricing-card.visible { opacity: 1; transform: translateY(0); }
.pricing-card.featured { border-color: rgba(124,58,237,.4); background: linear-gradient(135deg, rgba(124,58,237,.12), rgba(37,99,235,.06)); }
.pricing-card.featured::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: linear-gradient(90deg, var(--purple), var(--blue)); }
.pricing-badge { font-size: .65rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; padding: 4px 12px; border-radius: 999px; background: linear-gradient(135deg, var(--purple), var(--blue)); color: #fff; display: inline-block; margin-bottom: 20px; }
.pricing-name { font-size: 1.15rem; font-weight: 800; margin-bottom: 8px; }
.pricing-price { font-size: 2.5rem; font-weight: 900; letter-spacing: -.04em; margin-bottom: 4px; }
.pricing-period { font-size: .8rem; color: var(--muted); margin-bottom: 24px; }
.pricing-features { list-style: none; display: flex; flex-direction: column; gap: 10px; margin-bottom: 28px; }
.pricing-features li { display: flex; align-items: flex-start; gap: 10px; font-size: .875rem; color: var(--muted); }
.pricing-features li i { color: var(--green); font-size: .8rem; margin-top: 3px; flex-shrink: 0; }

/* ── Blog cards ────────────────────────────────── */
.blog-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 24px; margin-top: 48px; }
.blog-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; text-decoration: none; display: flex; flex-direction: column; opacity: 0; transform: translateY(20px); transition: opacity .5s ease, transform .5s ease, box-shadow .25s, border-color .25s; }
.blog-card.visible { opacity: 1; transform: translateY(0); }
.blog-card:hover { transform: translateY(-4px); box-shadow: 0 20px 40px rgba(0,0,0,.3); border-color: rgba(124,58,237,.3); }
.blog-cat { font-size: .65rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--purple-l); margin-bottom: 12px; display: flex; align-items: center; gap: 6px; }
.blog-title { font-size: 1.05rem; font-weight: 700; color: var(--text); line-height: 1.4; margin-bottom: 12px; }
.blog-excerpt { font-size: .875rem; color: var(--muted); line-height: 1.65; flex: 1; }
.blog-meta { display: flex; align-items: center; gap: 12px; font-size: .72rem; color: var(--muted); margin-top: 20px; padding-top: 16px; border-top: 1px solid var(--border); }
.blog-card-meta { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; flex-wrap: wrap; }
.blog-tag { font-size: .65rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; background: rgba(124,58,237,.15); color: var(--purple-l); padding: 3px 10px; border-radius: 999px; }
.blog-date { font-size: .72rem; color: var(--muted); display: flex; align-items: center; gap: 5px; }
.blog-card-title { font-size: 1.1rem; font-weight: 700; line-height: 1.35; margin-bottom: 12px; }
.blog-card-title a { color: var(--text); text-decoration: none; transition: color .2s; }
.blog-card-title a:hover { color: var(--purple-l); }
.blog-card-excerpt { font-size: .875rem; color: var(--muted); line-height: 1.7; flex: 1; margin-bottom: 20px; }
.blog-read-more { font-size: .8rem; font-weight: 600; color: var(--purple-l); text-decoration: none; display: inline-flex; align-items: center; gap: 6px; margin-top: auto; transition: gap .2s; }
.blog-read-more:hover { gap: 10px; }

/* ── Article typography ────────────────────────── */
.article-wrap { max-width: 720px; margin: 0 auto; padding: 120px 40px 80px; }
.article-header { margin-bottom: 48px; }
.article-header h1 { font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 900; letter-spacing: -.03em; line-height: 1.15; margin-bottom: 20px; }
.article-meta { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; font-size: .8rem; color: var(--muted); }
.article-body h2 { font-size: 1.5rem; font-weight: 800; letter-spacing: -.02em; margin: 48px 0 16px; color: var(--text); }
.article-body h3 { font-size: 1.15rem; font-weight: 700; margin: 32px 0 12px; color: var(--text); }
.article-body p { font-size: 1rem; color: var(--muted); line-height: 1.85; margin-bottom: 20px; }
.article-body ul, .article-body ol { margin: 0 0 20px 24px; color: var(--muted); font-size: 1rem; line-height: 1.85; }
.article-body li { margin-bottom: 8px; }
.article-body strong { color: var(--text); font-weight: 700; }
.article-body blockquote { border-left: 3px solid var(--purple-l); padding: 16px 20px; margin: 24px 0; background: rgba(124,58,237,.06); border-radius: 0 12px 12px 0; color: var(--text); font-style: italic; }
.article-cta { background: var(--card); border: 1px solid rgba(124,58,237,.3); border-radius: var(--radius); padding: 32px; margin-top: 60px; text-align: center; }
.article-cta h3 { font-size: 1.15rem; font-weight: 800; margin-bottom: 10px; }
.article-cta p { font-size: .9rem; color: var(--muted); margin-bottom: 20px; }

/* ── Contact form ──────────────────────────────── */
.form-wrap { max-width: 600px; margin: 0 auto; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: 20px; }
.form-group label { font-size: .8rem; font-weight: 600; color: var(--muted); }
.form-group input, .form-group select, .form-group textarea { background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 12px 16px; color: var(--text); font-family: 'Inter', sans-serif; font-size: .875rem; transition: border-color .2s; width: 100%; }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-color: var(--purple); }
.form-group textarea { resize: vertical; min-height: 120px; }
.form-group select option { background: #1e293b; }

/* ── Responsive ────────────────────────────────── */
@media (max-width: 900px) {
  nav { padding: 14px 20px; }
  .nav-links { display: none; }
  .nav-cta .btn-ghost { display: none; }
  section { padding: 70px 20px; }
  .content-grid, .content-grid.reverse { grid-template-columns: 1fr; direction: ltr; gap: 40px; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 32px; }
  .hero { padding: 120px 20px 60px; }
  .form-row { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .footer-top { grid-template-columns: 1fr; }
  .hero-stats { gap: 24px; }
  .stat-divider { display: none; }
  .article-wrap { padding: 100px 20px 60px; }
}